Just light it with a cigar on a stick. Wear goggles. Don't stick your head over a gigantic fireworks cannon. Don't walk down the freeway towards oncoming traffic. All good ideas.
We laugh, but of course ERs see tons of morons every 4th who basically blew their faces off in the most retarded way possible. I have a relative who blew a finger off about 20 years ago by putting an M-90 in a beer can and then purposefully holding the can when it went off. Fireworks I think are kind of a litmus test for morons. A few are fun...but when someone literally gets hours of enjoyment out of just blowing up illegal explosives, I think it kinda says a lot about the gears that are grinding in their head.